The Tamron 23FM50SP is a 50mm 3 megapixel lens with a M30x0.5 filter size.
The Tamron 23FM SP 2/3" 3MP Series Lens family features for up to 2/3" sensor sizes, optimized for 4.0µm pixel size (3mp), very close working distance (mod), very low distortion, screw locks, click stop iris.
Manufacturer: Tamron
Manufacturer PN: 23FM50SP
Focal Length: 50mm
Quality: 3MP
Sensor Size: 2/3"
Lens Mount: C
F Stop: 2.8
M.O.D. (m): .2
Dimensions (LxW mm): 34x63
Iris type: smooth
Filter size: M30x0.5
Distortion: call
Resolution: call